| FASTENER LENGTH | 0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| HEAD DIAMETER | 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| HEAD HEIGHT | 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM |
| HEAD STYLE | BEVEL-CONICAL |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL |
| MINIMUM TENSILE STRENGTH | 8000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 TY 2 CL 2 FED SPEC 2ND TREATMENT RESPONSE AND QQ-P-416 TY 2 CL 2 FED SPEC 3RD TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OR CADMIUM AND CHROMATE OVERALL |
| TEST DATA DOCUMENT | 98230-CE87447 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.438 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WIDTH ACROSS FLATS | 0.1094 INCHES MINIMUM AND 0.1111 INCHES MAXIMUM |